Adenocarcinoma in situ of the uterus refers to the cancerous transformation of epithelial cells, but it has not broken through the basement membrane without infiltration, and it can be treated by surgery, chemotherapy and radiotherapy, which need to be analyzed specifically. 1. Surgical treatment: all uterus and both fallopian tubes and ovaries can be removed by laparoscopic surgery or open surgery to achieve radical resection. 2. Chemotherapy: killing cancer cells through the use of chemotherapeutic drugs, but the chemotherapeutic drugs will also kill normal cells, which will have greater side effects on the body. 3. Radiation therapy: using high-energy rays to act on living organisms, causing tumor cells to be necrotic and playing a role in treatment. If you suspect adenocarcinoma in situ of the uterus, you must go to the hospital for treatment. Doctors will choose the suitable treatment plan according to the patient’s condition, physical condition and other factors.